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core-js vs styled-components

Based on 1600 and 170 real audits

View core-js details | View styled-components details
Metriccore-jsstyled-componentsWinner
Performance3633core-js
Accessibility8889styled-components
Best Practices8485styled-components
SEO9193styled-components
Security6565Tie
TTFB379ms321msstyled-components
Composite7272Tie
Performance
core-js
36
styled-components
33
Accessibility
core-js
88
styled-components
89
Security
core-js
65
styled-components
65
SEO
core-js
91
styled-components
93
Composite
core-js
72
styled-components
72

styled-components outperforms core-js in 4 of 7 categories, with a stronger composite score (72 vs 72). core-js leads in performance.

When to choose core-js

Choose core-js when your primary concern is performance. Its audit data shows consistent strength in these areas across the sampled sites.

When to choose styled-components

Choose styled-components when your primary concern is server response time and SEO. Its audit data shows consistent strength in these areas across the sampled sites.

How this comparison was built

Scores are medians across 1600 audited core-js sites and 170 audited styled-components sites in the BeaverCheck database. Every audit runs the same 100+ checks — Lighthouse performance, security headers, accessibility, SEO, server response time — against a real URL. No vendor input, no sponsorship, no affiliate links. Read the full methodology →

FAQ

Which is faster, core-js or styled-components?
Based on real BeaverCheck audits, core-js sites score higher on Lighthouse performance (36 vs 33 on average).
Which has better security, core-js or styled-components?
core-js sites score higher on security analysis (65 vs 65 on average).
Which has better accessibility, core-js or styled-components?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor styled-components (89 vs 88). Both technologies can be made fully accessible with care — the difference reflects common patterns in the sampled sites, not inherent platform limits.
Which is better for SEO, core-js or styled-components?
styled-components sites score higher on Lighthouse SEO signals (93 vs 91 on average), which cover meta tags, crawlability, mobile friendliness, and structured data. Content strategy and backlinks still matter more than platform choice for ranking.
Which has faster server response (TTFB), core-js or styled-components?
styled-components sites show lower Time to First Byte (321 ms vs 379 ms on average). TTFB depends heavily on hosting and CDN setup rather than the technology itself, but the sampled sites suggest a meaningful difference in common deployment patterns.
Should I choose core-js or styled-components for my website?
Both platforms have trade-offs. core-js scores higher on overall composite score while core-js may excel in metrics you care about most. Run a free BeaverCheck audit on a real site using each to compare the metrics relevant to your use case.
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